Pattern mechanism of looms.



I O. L. OWEN. PATTERN MECHANISM OF LOOMS. APPLIOATIOH FILED 828F128, 1906.

904,495. Patented Nov. 17, 1908.

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O. L. OWEN. PATTERN MECHANISM 0]? 1.00118. nrmonzon nun) 81213128, 1906.

' 904,495. Patented Nov. 17, 19.08.

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X'Wventor:

I o. L. OWEN.

PATTERN MECHANISM OF LOOMS.

APPLICATION FILED 8EPT.28, 1906.

Patented Nov. 17,1908.

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OSCAR L. OWEN, OF WHITINSVILLE, MASSACHUSETTS.

PATTERN IMECHANISM OF LOOMS.

Specification of Letters Patent.

Patented Nov. 17, 1908.

Application filed September 28, 1906. Serial No. 336,523.

1'0 all whom it may concern:

Be it known that I, OSCAR L. OWEN, a citizen of the United States, residing at WVhitinsville, county of lVorcester, and State of h lassachusetts, have invented certain new and useful Improvements in Pattern Mechanisms of Looms, of which the following is a full, clear, and concise specification.

My invention relates to the pattern mechanisms of looms, and consists of a simple and effective arrangement of the driving mechanism thereof, whereby the number of parts is reduced, and the shed-forming and drop-box pattern-chains may be jointly actuated in the normal operation of the loom, or manipulated independently of the loom in case the weaver wishes to adjust either of the chains separately or both together, as will be hereinafter fully described and more particularly pointed out in the accompanying claims.

In the drawings forming a part hereof, only so much of the ordinary dobby-frame and associated parts is shown as is necessary for illustrating the principle and application of my invention, and the said parts will be easily recognized by those familiar with this art.

Figure l is a side elevation of a portion of a loom dobby, showing the shed-forming and shuttle-box pattern-chains arranged in accordance with my invention, but, for convenience, omitting the usual parts operated by said mechanisms; Fig. 2 is a plan view of the parts shown in Fig. 1; and Fig. 3 is a side view of Fig. 1.

The dobby-frame is of usual construction secured to the loom frame A, and comprises, as usual, the two side frames A, A, in which the shed-forming pattern shaft B is journaled and between which the patternchain drum B and its chain O are carried. The pattern-chain shaft B protrudes at each end beyond the dobby-frame and at one end is provided with an idly mounted wormgear B and a friction slip-clutch B held against the gear by a suitable spring. The worm D engaging the under side of gear B is carried by a short shaft D which is geared to the crank-shaft E of the loom through the instrumentality of the sprocket connections D and gears D D of usual arrangement. By means of this gearing the wornrgear B thus constitutes a power means for driving the pattern shaft B through the slip-clutch B above mentioned.

The shuttle-box pattern-chain F is carried by its chain-drum F on the shaft G which is parallel with shaft B and, like it, journaled in the side-frames A, A of the dobby. The lifting levers F located above theshuttle-boX pattern-chain are adapted to be operated in the well understood manner for controlling the position of the shuttle boxes by means of connections not shown in the drawings. The shaft G is longer than the shaft B, so that the chain drum F carried at its extremity, is offset from the other chain, as viewed from the end of the loom,

and is likewise out of the way of the dobby connecting rod D and other of the driving gearing ordinarily to be found at this side of the dobby frame.

At the opposite side of the dobby-frame the two shafts B and G are interconnected by means of gearing which comprises a short shaft H appropriately journaled in brackets on the frame A and carrying at each end the bevel gears H, H which latter are respectively in mesh with the pinion B on shaft B and pinion G on shaft G. The pinion H is slidably mounted or splined upon its shaft so that it may be moved into and out of engagement with the gear G, thus constituting a clutch between the two shafts B and G, by means of which they may be connected or disconnected as desired. The shifting means for the clutch gear H comprises a shipping lever K fulcrumed on a bracket K with one end engaging an annular groove in the hub of pinion H and the other end fashioned as a handle. A spring detent K of ordinary construction, is housed within the bracket adjacent to the fulcrum pin of the shipping lever K for re taining the same in either its connecting or disconnecting position. The shaft G is provided with a hand-wheel or knob G by means of which it may be manually rotated, and the shed-forming pattern-shaft B is also provided with a means for manual operation in the form of a crank-wheel L which is somewhat larger than the hand wheel G In the normal operation of the loom, and when employing the shuttle-box patternmechanism, the two shafts will be geared together as indicated in Fig. 2, so that the mo tion imparted, as above described, to the shaft B will be communicated by it to the shaft G. If it is desired by the weaver to turn. this mechanism backwardly with respect to the rest of the loom, as in the case of a mis-pick or a flaw in the Weave or for any other cause, he may do so by turning the crank-wheel L in obvious manner, which produces corresponding rotation of both chains. During this adjustment the clutch B will slip on the driving worm-gear B Or, if he desires for special reasons to adjust one chain independently of the other, this may be done by opening the clutching means of the interconnecting gearing. In cases where the shed-forming pattern-mechanism only is required for the work in hand, the shuttle-box mechanism may be disconnected and rendered inoperative by leaving the clutching lever K in its open position.

It should be noted that the foregoing arrangement of the chains on two parallel shafts both carried by the dobby frame and of the hand wheels and clutch on the same side of the said frame, is especially advantageous in respect of the ease and readiness with which either one, or both, may be manipulated by the weaver, and likewise that the simplicity of the connecting gearing, which is also exposed to view, renders the apparatus easily understood by the weaver and therefore less likely to be improperly adjusted.

Having described my invention, what I claim and desire to secure by United States Letters Patent is:

1. In a pattern-loom, a dobby-frame and a shed forming pattern shaft journaled therein, a shuttle-box pattern shaft also journaled in said frame, and gearing interconnecting said shafts, in combination with power means independent of said gearing, for driving one of said shafts, a clutch between said power means and the shaft which it drives, means for disconnecting the aforesaid gearing and means for manually operating said shafts.

2. In a pattern loom, a dobby-frame. a shed-forming pattern-shaft j ournaled therein, a shuttle-box pattern-shaft also j ournaled in said frame, gearing interconnecting said two shafts located at one side of said frame and a clutch associated with said gearing, in combination with independent power means for driving one of said shafts and located at the opposite side of the said frame, and a clutch between said power means and the shaft which it drives.

3. In a pattern loom, the combination of the dobby-frame, two parallel shafts carried thereby and respectively arranged to drive the shed forming and the shuttle-box pattern chains, hand wheels for each said shaft on the adjacent ends thereof, gearing interconnecting said two shafts, and a power driving means independent of said gearing and engaging the other end of one of said shafts, in combination with means for dis engaging said interconnecting gearing.

4. In a pattern loom, a dobby comprising two side frames adapted to accommodate the shed-forming pattern chain between them, a driving shaft for said chain journaled in said side frames, a driving shaft for the shuttle-box pattern mechanism also journaled in said side frames, a clutch at one side of the dobby applied to one of said shafts and power means driving said shaft through said clutch in combination with interconnecting gearing between said two driving shafts on the opposite side of the dobby, whereby the motion imparted to one is transmitted by it to the other, means for disconnecting said gearing and a hand wheel for each of said shafts.

In testimony whereof, I have signed my name to the specification in the presence of two subscribing witnesses.

JOSEPH B. ADAMS, HARMON O. NELSON. 

